Portland to Seattle (PDX–SEA) — Airlines, Schedules & Connections
Flight Schedule
131 flights
Verified 1h ago
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No flights match your filters.
No nonstop flights on this route. connecting options below.
✦ 1-Stop
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Portland to Seattle
3 carriers, 418 flights/week nonstop.
3 Airlines
418 Flights/wk
129 mi
0h 53m nonstop
100 1-stop hubs
PDX–SEA is served by 3 airlines with nonstop service. Alaska Airlines, Delta Air Lines and Sun Country Airlines lead the route. The flight covers 129 miles in approximately 0h 53m. Beyond nonstop, 100 hubs offer 1-stop connections.
Carriers on this route
Airline Landscape
All carriers operating nonstop PDX–SEA service, compared side by side.
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| AS Alaska Airlines Also: BA, DE, FI, HA, JX, KE, QR | 103 | 739, 73J, 7M9, E75, E75L | 0h53-1h14 | Oneworld | BA, DE, FI, HA, JX, KE, QR | |
| DL Delta Air Lines Also: AF, AM, KE, KL, VS, WS | 76 | 221, BCS3, E75L, E7W | 1h-1h29 | SkyTeam | AF, AM, KE, KL, VS, WS | |
| SY Sun Country Airlines | 1 | – | – | – | – |
Aircraft on this route
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.
Schedule
Weekly Schedule Pattern
Nonstop flight frequency by day of week, PDX to SEA direction.
Mon
61
flights
Tue
58
flights
Wed
61
flights
Thu
60
flights
Fri
60
flights
Sat
55
flights
Sun
63
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
67
Nonstop flights
418
Outbound / wk
418
Return / wk
Connections
Connection Landscape
Beyond nonstop. 1-stop and 2-stop options for PDX to SEA.
1-STOP
One-Stop Connections
100
Hubs
~3h
Fastest
~29h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
3,039
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.
Alternatives
Other ways to reach Seattle from Portland
Nearby airports with service to Seattle–Tacoma International Airport.
| Metric | PDX→SEA | EUG→SEA | TIW→SEA |
|---|---|---|---|
| Distance from PDX | – | 106 mi | 116 mi |
| Nonstop airlines | 3 | 11 | 1 |
| Weekly flights | 418 | 186 | – |
| Flight time | 0h 53m | 1h 9m | – |
| Departure OTP | 100% | – | – |
Eugene (EUG) to Seattle flights · Tacoma (TIW) to Seattle flights · Redmond (RDM) to Seattle flights
Airports within 200 miles of PDX with service to Seattle–Tacoma International Airport.
Know before you go
Travel Essentials
Practical planning for this route.
Time Difference
0h
Seattle is 0 hours
the same as
Portland.
PDX: PDT · SEA: PDT
When it's 6:00 PM in Portland, it's 6:00 PM in Seattle.
PDX: PDT · SEA: PDT
When it's 6:00 PM in Portland, it's 6:00 PM in Seattle.
Distance & Flight Time
129 mi / 208 km
Nonstop flight time is approximately 0h 53m to 1h 29m.
Getting from SEA
Link Light Rail from the airport station (inside the terminal) to downtown Seattle takes 38 minutes ($3.50). No transfers needed; trains run 5am to 1am daily.Taxis and ride-shares to downtown cost $35–55. For Bellevue and Eastside destinations (across Lake Washington), ride-share is faster than Link. Car rentals are in the consolidated rental facility; take the free shuttle from baggage claim. Sound Transit buses serve Tacoma, Renton, and Federal Way.
Seattle Climate
Marine west coast climate. Winters are mild but persistently grey and rainy (3–9°C). Snow is rare at sea level but can occur December through February, causing significant disruptions when it does. The airport sits between Seattle and Tacoma in an area that receives more fog and low cloud than downtown Seattle.
Summers are famously pleasant (18–25°C) with low humidity and mostly clear skies, one of the best flying climates in the US from June through September. The wettest months are November through January.
Facts
PDX–SEA Quick Facts
Key statistics for the Portland to Seattle route.
Route details
Distance129 mi / 208 km
Flight time0h 53m to 1h 29m
Time difference0 hours
Airlines (nonstop)3
Weekly flights418 out / 418 return
1-stop connections100 hubs
Origin: PDX
Full namePortland International Airport
IATA / ICAOPDX / KPDX
TimezoneAmerica/Los_Angeles
Passengers/yr17.3M
Elevation31 ft / 9 m
Destination: SEA
Full nameSeattle–Tacoma International Airport
IATA / ICAOSEA / KSEA
TimezoneAmerica/Los_Angeles
Passengers/yr52.6M
Elevation433 ft / 132 m
FAQ
Frequently Asked Questions
Common questions about PDX to SEA flights.
Nonstop flights from Portland International Airport to Seattle–Tacoma International Airport take approximately 0h 53m to 1h 29m. The route covers 129 miles.
3 airlines operate nonstop service: Alaska Airlines, Delta Air Lines and Sun Country Airlines. Plus 12 codeshare partners.
There are approximately 418 nonstop flights per week from PDX to SEA. The return direction has about 418 weekly flights.
Yes, 1-stop connections are available through PAE, YLW, PUW, BFI, EAT, CCR, RDD, VNY, SCK, SUN, SBD, AZA, JAC, YEG, HDN, FTW, AFW, OMA, OKC, MKE, SAT, ICT, CMH, TEB, RFD, GSO, PVR, RDU, TPA, FLL, CUN, STS, JFK, MCO, BLI, GEG, MFR, BOI, RDM, RNO, LAX, SLC, EUG, SFO, YVR, CVG, ONT, OAK, SMF, SJC, DAL, BUR, DTW, MSY, ANC, LAS, SNA, TUS, PSP, DFW, FCA, CLT, SAN, DEN, FAT, IDA, GDL, AUS, MSP, MSO, HND, ORD, BWI, PHX, MDW, BIL, BZN, IAH, ATL, MCI, IAD, KOA, HNL, SBP, STL, MIA, LIH, OGG, BNA, PHL, ABQ, BOS, EWR, LHR, FAI, DCA, AMS, KEF, SBA and SJD. These options provide additional schedule flexibility.
Yes, return flights from SEA to PDX are available. Use the direction toggle at the top to view the return schedule.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.
Alaska Airlines, Delta, United, Southwest, and Horizon Air (Alaska's regional subsidiary) all serve PDX–SEA nonstop. Alaska and Horizon run the highest combined frequency, often 8–10 daily departures across their joint operation. Delta and United add service from their hub connections. Flight time is 40 minutes. At PDX, Alaska and Horizon use Concourse C and D; Southwest uses Concourse C. At SEA, Alaska operates from the main satellite and North Satellite.
Amtrak Cascades runs 4–5 daily trains between Portland Union Station and Seattle King Street Station in 3 hours 30 minutes, with city-center-to-city-center convenience. Fares start around $20. The drive on I-5 is 175 miles and takes 2 hours 45 minutes in light traffic, 3 hours 30 minutes or more during Seattle morning rush. The flight is 40 minutes in the air. With airport check-in time at both ends, total door-to-door is typically 2 hours 30 minutes to 3 hours, making train and car genuinely competitive for many travelers.
The primary flying market on PDX–SEA is passengers connecting at SEA to Alaska's transpacific routes, international departures, or cross-country flights. A traveler flying PDX–SEA–NRT or PDX–SEA–JFK needs a confirmed through connection that the train cannot provide. Same-day business travelers heading to meetings in Seattle also use the early morning banks when train scheduling is less convenient. The route is rarely a point-to-point leisure trip; it functions mostly as a connecting segment within a longer itinerary.
Portland to Seattle: The Pacific Northwest's Short-Haul Connector
PDX–SEA is one of the shortest commercial air routes in the continental US at around 150 air miles. Alaska Airlines and its regional partner Horizon Air operate it at high frequency as a feed route into SEA's international and transpacific network. Delta and United run the route as connections into their hub systems. Block time is 40 minutes. The route's passenger profile is predominantly connecting traffic: travelers from Portland or Southwest Washington who need access to Alaska's SEA hub for international departures to Japan, Korea, Australia, and Europe, or to cross-country connections not served nonstop from PDX.
Surface Competition and Route Purpose
Amtrak Cascades and Interstate 5 provide genuine alternatives for pure Portland–Seattle point-to-point travel, and a portion of the potential air market uses surface modes instead. The air route persists at high frequency because connecting traffic cannot use the train. PDX handles around 20 million passengers annually and has growing nonstop international service, which reduces some connecting demand through SEA. Still, Alaska's SEA network depth for transpacific routes makes PDX–SEA a permanent and well-subscribed connection in both directions.